Plural - stage stone - crushing mill with independent and arcuately swingable jaws



21 19% J. L. BREQKLEY 294939353 PLURAL-STAGE STONE-CRUSHING MILL WITHINDEPENDENT AND macummwswmsmm JAWS 4 Sheets-Sheet 1' Filed Jan. 23, 1948Feb. 21 1950 ICKLEY 2,498,151

J. L. BR PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT ANDARCUATELY-SWINGABLE JAWS Filed Jan. 23, 1948 Y 4 Sheets-Sheet 2 I \0 N II I I I m I Q Q I I 1% I t w I o o o o I: |I I I I g I I I o o e 0 6' III I o q o I: q-

I I I I o o o s i w I I I I Q Q I I a b \I m l a 8 E I N I I I II LI m Mt 3 E w t\ I JLJFrz'ckZgy INVENTOR ATTORNEYS.

Fe 21, 1950 J. L. BRICKLEY 2,498,151

I PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT ANDARCUATELY-SWINGABLE JAWS Filed Jan. 23, 1948 4 Sheets-Sheet 3 ATTORNEYS.

Feb. 21, 1950 J. L. BRICKLEY 2,498,151

PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT ANDARCUATELY-SWINGABLE JAWS Filed Jan. 4 Sheets-Sheet 4 JZJSrz'citZeyINVENTOH ATTORNEYS.

Patented Feb. 21, 1950 UNITED STATES PATENT OFFICE PLURAL- STAGE STONECRUSHING MILL wrrn INDEPENDENT AND ARCUATELY SWINGABLE JAWS James L.Briokley, Spokane, Wash.

Application January 23, 1948, Serial No.3,921

action and grinding action takes place as the hammers swing.

Another object of the invention is to provide a machine which willpermit the elimination of particles of finished product as soonas theyare formed, thereby preventing the-accumulation of finished materialforming a so-called cushion-to retard and hamper the" milling operationof the ."whi'ch appear as the deseription -prooeeds, the inventionconsists of certain novel details of construction and combinations ofparts, hereinafter more fully described and pointed out in the elai'ms,it being understood:- that changeszinay :be made in the construction andarrangement of parts without departing from the spirit of the inventionas claimed.-

"Referring to the. drawings:

Figure 1 is a sideelevational view stamaehim Fig. 7 is'a perspectiveview of one of the swinging hammers, forming a part of the invention.

'Fig.--8 is-a perspective view oi one of "the cups of the elevatorwheel.

Referring to the drawin'gsin' detail, the comprises a body p'ortionorframe including a base indicated generally by the reference character 5to which thesheet metal side members 6 of the body portion are secured,the upper ends of the sheet metal side members being held in spacedrelation with respect to each othenby means of the cross" bars 1disposed adjacentzto the ends of the side members.

The sheet metalside members are formed with outwardly disposedlongitudinal flanges at the upper edges thereof, the flanges beingindicated by the reference character v8', and to these flanges aresecured bearings 9' that are bolted in position by means of tlze*b"o'lt's i0. Transversely disposed shafts ll have their ends mountedin the bearings 9, and providesupports forthe-hanger arms I! whichare'mouiite'd on the shafts I I, adiacent to theends thereof, thearms 12providing sup- ;p'orts for the-hammers- 13 which enrbodyheavy weightedmembers, the heavy weighted members in the present showing comprisinglong metal bars l4 provided with hard steel eaps l5 that completelyhouse" the side fades of the long metal bars, providing wear surfaces tocontact the stone or rocks being treated.

As clearly shown by Fig. 3 of the drawings, these hammers are arrangedone-above the other, and are three innum'ber, although the number ofhammers 'supportedonthe hanger arms, may be varied "to meet variousrequirements.

The hammers are" arranged in parallel spaced relation with respect toeach otherand are so mounted that they will swing freely towardsand awayfrom each other, withthe result thatstones to the center of which areattached arms I8, the operating arms l8 or connection between thecentral hammer and operating arms being at the ends of the lowermosthammer element of the central hammer, as shown by Fig. 3 of thedrawings.

These operating arms have their rear ends connected by means of thetransverse bar l9 that has spaced bearing ears 28 between which the arm2| is pivotally mounted, the arm 21 being pivotally connected to thelower end of the link 22 that in turn has pivotal connection with thepitman 23 that is pivotally connected with the shaft 24 mounted on themain frame 25 forminga part of the power element of the mill.

The rear'end of the'pitman 23 connects with the link 26 that in turn isconnected with the crank arm 21 secured to the shaft 28 mounted terialdeposited between adjacent hammers will be broken by the hammers movingtowards each other. As the central'hammer moves rearwardly, the stonesand material deposited between these hammers will be crushed by theaction of the hammers moving towards each other.

The side members 6 are connected at a point intermediate their upper andlower edges, by

means of the bar 33, which bar is provided with openings through whichthe bolts 34 move, the bolts 34 providing supports for the coiledsprings 35 that also bear against the bar 38. These springs and bars 33and 36 provide a stop of a yieldable character, and against which theadjacent hammer engages as the hammers at this side of the centralhammer move rearwardly.

Pivotally supported on bearings that extend inwardly fromthe sidemembers 6, are hanger through openings in the movable trough 38, the

rods 31 having threaded ends 38 on which the nuts 48 operate whereby theangle of operation 'of the trough 38 may be regulated. This trough .rods31 that have their lower ends extended 38 hangs directly under thehammers, and ex ,tends throughout the width of the body portion of themill to receive material which has been crushed between the hammers, asthe material falls from the hammers.

Extending forwardly fromthe front hammer lare arms 4| that are inalignment with the hanger rods 31 at the front end of the machine, sothat as the hammers move forwardly, these arms 4| will engage the hangerrods disposed trough supported thereby, to shake the trough 38 and feedmaterial to the lower .end thereof.

Extending into theupper portion of the body,

is a feed trough 42, to which material from the spout 43 is delivered,the material passing over..-

the feed trough 42 onto the hammers l3.

Directly in front of the discharge end of the rected into the trough 45.

Secured to the base,. and rising therefrom,

adjacent thereto, moving the hanger armsv and:

mounted on the upper end thereof, the bearing 41 providing the bearingfor the shaft 48 on which the elevator wheel 49 is secured to operatetherewith.

The elevator wheel is of a construction so that the cups 50 thereofextend forwardly from the ring 5!, the cups moving in a circle aroundthe extended end 52 of the trough 42. Thus it will be seen that as theelevator wheel operates through the trough 45, material will be pickedup by the cups 58 and deposited on the extended end 52 of the trough 42where the material will by gravity, feed to the upper surfaces of thehammers which being in motion, will crush the material between theadjacent faces of the hammers, as the hammersaremoved towards eachother.

A pulley indicated by the reference character 53 is secured to one endof the shaft 48 and receives its motion from a suitable power device notshown, through the belt 54.

In the operation of the mill, coarse mesh rock is fed through the spout43 of the feed hopper, onto the feed trough 22, from where the rock isdelivered onto the upper ends of the hammers l3. As the hammers aremoved into and out of contact with each other "rapidly, the rock fallingbetween adjacent hammers is crushed between the hammers and falls intothe trough 38. As the trough is reciprocated by the action of thehammers, the material is fed into the trough or sump 45, where it ispicked up and carried onto the feed trough 42 for further crushing.

With this mill, coarse mesh rock or material will be reduced to thedesired grade with the minimum amount of wear on the mechanism of themill.

Having thus described the invention, what is claimed is: I

1. A rock crushing mill comprising a body portion, a row of dependingindependent vertical swinging arms mounted on the body portion inhorizontal spaced relation with respect to each other, a plurality ofsuperimposed vertically spaced hammers mounted on each arm, the hammersof adjacent swinging arms being spaced apart, operating arms connectedwith the lowermost hammer of the intermediate arm of the row of hammers,whereby said hammers are moved into crushing relation with each other asthe operating arms reciprocate, crushing stones delivered therebetween,and means for'deliveri'ng stone to the spaces between adjacent hammers.

2. A rock crushing mill comprising a body portion, a row of horizontallydisposed shafts supported on the body portion, a row of dependingswinging arms mounted on the shaft, rows of superimposed hammers spacedapart and secured to the arms at pointsbelow the pivot points of thearms, the hammers being disposed in vertical spaced relation withrespect to each other, operating arms connected with the lowermosthammer of one of said arms, means for reciprocating the operating armsmoving the hammers of adjacent arms into crushing relation with respectto each other, and means for cushioning the movements of the swingingarms.

3. A rock crushing mill comprising a body portion, a row of horizontallydisposed shafts supported by the body portion, a row of dependingswinging arms mounted on the shafts, superimposed hammers secured to thearms: below .the pivot points of the arms, said hammers being dis-"posedin vertical spaced relation with respect to are supports 46 whichhave the bearing 41 each other, operating arms connected with one 5 6 ofsaid hammers, and means for reciprocating the Number Name Date operatingarms moving the swinging arms and 257,852 David May 16, 1882 hammerscrushing material delivered between the 308,234 Blake Nov. 18, 1884hammers of the swinging arms. 439,374 Blake Oct. 28, 1890 JAMES L.BRICKLEY. 5 646,516 Brown Apr. 3, 1900 955,555 Sauerman Apr. 19, 1910REFERENCES CITED 973,761 Cline Oct. 25, 1910 The following referencesare of record in the 1293188 Pfersch 1919 file of p t t: Pudan 23, 102,001,549 Sandy May 14, 1935 UNITED STATES PATENTS 2,094,465 PetersonSept. 28, 1937 N'mnber Name Date AinSa July 15, 187,375 Hall Feb. 13,1877 238,176 Speers Feb. 22, 1881 FOREIGN PATENTS 252,080 Dalton Jan.10, 1882 5 Number Country Date 256,959 Blake Apr. 25, 1882 338,414Germany June 17, 1921

